/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/ConvexHalfEdgeStructureData.h
We cache 3 planes per vertex since this is the most common request and a major bottleneck in GJK (SupportCoreScaled -> GetMarginAdjustedVertexScaled -> FindVertexPlanes
struct FVertexPlanes
FIndex
NumPlaneIndices
FIndex[3]
PlaneIndices